Add setCoordinates for point and dispatch change event

src/ol/geom/point.js

@@ -1,8 +1,10 @@
 goog.provide('ol.geom.Point');
 
 goog.require('goog.asserts');
+goog.require('goog.events.EventType');
 goog.require('ol.Coordinate');
 goog.require('ol.geom.Geometry');
+goog.require('ol.geom.GeometryEvent');
 goog.require('ol.geom.GeometryType');
 
 
@@ -71,11 +73,24 @@ ol.geom.Point.prototype.getType = function() {
 };
 
 
+/**
+ * Update the point coordinates.
+ * @param {ol.Coordinate} coordinates Coordinates array.
+ */
+ol.geom.Point.prototype.setCoordinates = function(coordinates) {
+  var oldBounds = this.bounds_;
+  this.bounds_ = null;
+  this.coordinates_ = coordinates;
+  this.dispatchEvent(new ol.geom.GeometryEvent(goog.events.EventType.CHANGE,
+      this, oldBounds));
+};
+
+
 /**
  * @inheritDoc
  */
 ol.geom.Point.prototype.transform = function(transform) {
   var coordinates = this.getCoordinates();
   transform(coordinates, coordinates, coordinates.length);
-  this.bounds_ = null;
+  this.setCoordinates(coordinates); // for change event
 };

test/spec/ol/geom/point.test.js

@@ -34,6 +34,35 @@ describe('ol.geom.Point', function() {
 
   });
 
+  describe('#setCoordinates()', function() {
+
+    it('updates the coordinates', function() {
+      var point = new ol.geom.Point([10, 20]);
+      point.setCoordinates([30, 40]);
+      expect(point.getCoordinates()).to.eql([30, 40]);
+    });
+
+    it('invalidates bounds', function() {
+      var point = new ol.geom.Point([10, 20]);
+      point.setCoordinates([30, 40]);
+      expect(point.getBounds()).to.eql([30, 40, 30, 40]);
+    });
+
+    it('triggers a change event', function(done) {
+      var point = new ol.geom.Point([10, 20]);
+      expect(point.getBounds()).to.eql([10, 20, 10, 20]);
+      goog.events.listen(point, 'change', function(evt) {
+        expect(evt.target).to.equal(point);
+        expect(evt.oldExtent).to.eql([10, 20, 10, 20]);
+        expect(evt.target.getBounds()).to.eql([30, 40, 30, 40]);
+        expect(evt.target.getCoordinates()).to.eql([30, 40]);
+        done();
+      });
+      point.setCoordinates([30, 40]);
+    });
+
+  });
+
   describe('#transform()', function() {
 
     var forward = ol.proj.getTransform('EPSG:4326', 'EPSG:3857');
@@ -57,6 +86,7 @@ describe('ol.geom.Point', function() {
 
 });
 
+goog.require('goog.events');
 goog.require('ol.geom.Geometry');
 goog.require('ol.geom.Point');
 goog.require('ol.proj');